Improvement in bilge-water alarms



A. F. EELLs.

BILGE-WATER ALARM.

WITNESSES F1 No. Patented Nov. 28,1876.

VINVEN'TD R A 'rnn PATENT Enron.

ALBERT F. EELLS, OF BOSTON, MASS., ASSIGNOR OF A PART OF HIS RIGHT TOSAMUEL O. LOUD, W. H. DOLE, AND F. B. DOLE, OF SAME PLACE.

IMPROVEMENT IN BlLGE-WATE-R ALARMs.

Specification'formingpart of Letters Patent No. 184,851, dated November28, 1876 application filed October 23, 1876.

- height in the ship and consists in combining,

with an alarm device and a mercury-column, a tube which extends to thehold of the ship, and terminates in a hell or water-chamber, the mouthof which opens downward, so that when the water rises above it, pressureis produced within the pipe, said pressure being transmitted to themercury column, and through the overflow of the mercury to the alarmdevice. s

This device is not confined to ships use,

but may be applied to a variety of uses.

Figure 1 is an elevation of my invention. Fig. 2 is a verticalcross-section of the same. Fig. 3 shows a part of the let-01f device.

In this device, A represents a fixed water bell or chamber, having itsopen end downward, as shown in Fig. 2. To the upper part of this bell Iattach the air-pipe B, which'communicates with the mercury siphon B B,Fig. 2. The ascending arm B of the siphon terminates in the cup orreceptacle D, from which a pipe, E E, leads to the counterpoisecup K ofthe alarm-device let-off.

This alarm device will be foundfully described in Letters Patent of theUnited States granted to me, and dated August 22,1876,

No. 181,323, entitled Improvement in Fire- Alarms.

The operation of my device is as follows: When water begins toaccumulate in the bilge it will flow upward into the hell or chamber A,and thus exert a pressure on the air in the bell A and tube B. Thispressure will be transmitted to the mercury in the siphon B B and causethe mercury to ascend the arm B andthus indicate on the graduated scaleC the amount of water in the bilge. A continued rise of water in thebilge will cause the mercury in B to overflow into the cup D, and thencethrough the pipe E E to the counterpoisecnp K of the alarm device, andthus give the alarm.

I claim as my invention- The combination of the water hell or chamber A,pipe B B,'siphon B B cup D, and

pose set forth.

ALBERT F. EELLS.

Witnesses:

FRANK G. PARKER, A. HUN BERRY.

